21974864

素因数分解:

$2^4\times {\mathrm{1123}}^1\times {\mathrm{1223}}^1$

素因数の和:2354

約数の個数: 20

約数和(自身を含む): 42649056

約数和(自身を除く): 20674192

約数列:

[1, 2, 4, 8, 16, 1123, 1223, 2246, 2446, 4492, 4892, 8984, 9784, 17968, 19568, 1373429, 2746858, 5493716, 10987432, 21974864]

約数ペア:

[(1, 21974864), (2, 10987432), (4, 5493716), (8, 2746858), (16, 1373429), (1123, 19568), (1223, 17968), (2246, 9784), (2446, 8984), (4492, 4892)]